Survivalist Invisible Strain Mods -

: Saves time by allowing you to produce ammunition in larger quantities rather than one by one.

: Widely considered a "5-star" must-have, this mod introduces advanced zombie mechanics and is often used in tandem with other SIS mods. Survivalist Invisible Strain Mods

: Allows you to inquire about NPC stats, making recruitment more strategic. Equipment & Weapon Packs : Saves time by allowing you to produce